package cn.pengpeng.day03.firstMr;

import java.io.IOException;

import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Mapper;

/**
 * 数据类型        hadoop数据需要经过网络传输    要求需要序列化
 * @author root
 *
 */
public class MapTask extends Mapper<LongWritable, Text, Text, IntWritable>{

	@Override
	protected void map(LongWritable key, Text value, Context context)
			throws IOException, InterruptedException {
		String line = value.toString();
		String[] words = line.split(" ");
		for (String word : words) {
			context.write(new Text(word), new IntWritable(1));
		}
	}
		
}
